Box-joint-grooving machine



. Sept.. 27.1927'.l .l 1,643,576,

A. COLONNA Box JOINT Gnoovme MACHINE original Filed Aug. 24, 1925 l 1 z/ ,zal I l-E7 NVENTQR @fige/o Colore/za l ATTORN EY 7 Patented Sept. 27, 1927.

' "UNITED",jjsTATEs BATENT OFFICE.:

I' ANGELO COLONNA, OF IHILADELPHIA, lENNSYLVANIA.`

.BoX-JoINTaGRoovrive MACHINE.

l. Application filed August 24, 1925, serial No. 52,057'. Renewed August 13, 1927.

' rIhis invention relates to a machine for grooving or seammg and refers more particularly to an improved apparatus and method of forming grooves or seams although the One ofthe objects of the inventionis tok provide an apparatus whereby 'a number of diEerent kinds of grooves or seams` are accomplished by the use .of a .provided adjustment.

A further object of the invention is toprovide a ready and rapid means of changing said apparatus so that any other number of different kinds of grooves or seams are accomplished.

A still further object of the invention is to provide an apparatus of this character in which the parts are compactly arranged and so constructed that it may be readily operated.

An additional object of the invention is to provide an apparatus simple in construction and arrangement, durable in service, and a. general improvement in the art, and in such further features of construction and operations as will more fully hereinafter appear.

In the drawings Fig. 1 is a side view of my apparatus,

Fig. 2 is a cross-section on line 2-2 of Fig. 1,

Fig. 3 is an enlarged fragment-ary section similar to Fig. 2, Fig. 4 is an enlarged fragmentary section showing a different application,

Fig. 5 is an enlarged fragmentary section showing a still different application,

, Fig. 6 is an enlarged fragmentary section showing other applications,

Fig. 7 is a fragmentary section on line 7 7 of Fig. 1and Fig. 8 is a fragmentary section showing the invention of the end of the forming bar in the frame.

Describing in detail the apparatus shown in the drawing:

The apparatus may be operated by means of a crank 13 or other suitable handle or hand wheel, or may be driven by a suitable belt extending over a pulley. so arranged to cause the gear 14 to operate the rack 15 along the'forming bar 16, said forming bar 16 having a suitable bearing 17 forthe forming wheel 18, said rack 15 having a suitable guide 19 to properly guide said forming wheel y18, the said guide 19 being held in place by the protruding bar 20, and the spring 21 placed between. said rack 15 and said protruding bar 2O causing the proper tension or force to be applied to the said .forming wheel 18.

Vhile the form of groove or seam will 0f course vary` withv the particular forming wheel 18 and the forming bar v16 used, depending upon the groove or seam desired and its location on the can, container, .or sheet metal to be formed or grooved, it is shown as having an outer peripheral groove or seam on the corner ofthe can, container, or sheet metal, in Fig. 3. In Fig. 4. I have shown another type of outer peripheral groove or seam on the straight part of the can, container, or sheet metal. In Fig. 5, I have shown a modified form of the groove as shown in Fig. 4. In Fig. 6 I have shown a groove or a seam on the inner peripheral of a round can, container. or curved piece of sheet metal. The invention is not necessarily limited to the types or location of the grooves or seams hereinbefore mentioned.

As shown in Fig. 7. the gear 14 is fixed to the shaft 22. to which is also fixed the crank 13, or .other suitable handle, handwheel, or pulley said shaft 22 being suitably mounted or having its bearing in the frame 23.

In 8 I have shown the arrangement for adjusting the `forming bar 16 to the desired position, depending on the style or form and the position or location of said groove or seam on the article or piece tobe grooved or seamed. The coil spring 24 acting against said frame 23 and the shoulder 25 on said forming bar 16, by means of the square portion 26 of said forming bar 16 Y (which is snugly fitted in the square formed in said frame 23) holds said forming bar 16 in any desired fixed position. It also lallows the said forming bar 16'to be pulled forward thus disengaging said square portion 26 of said forming bar 16, so that said forming bar 16 may be turned or adiusted to any one of the four desired positions. In event it is desired to change the forming bar 16, this is acomplished by removing the cover plate 27 shown in Fig. 1. and Fig. 2.

In the drawing I have shown the forming bar 16 :as 'having ourlworking #edges although said forming ybar L6 isyno't necessari-fly limited to this number of Working edges,

but may comprise any xdesired number fof' Working edges, such as iive, slX, seven, eight,

Vonly greatly facilitates the Work "or operav"tiene necessary Vto accomplish four, five,.six,

seven, eight, nine, y or ten; -but that 'the iin- Ventron also greatly eliminates the Work y.or operations necessary to alter vor change the 'apparatus to accomplish vany number of desired gr-oovesfor seams.

Having :thus described my invention, `what I claim as new, and ydesire ito secure by YLetters Patent, vis as fo'llo'ws'g- 1. In an apparatus for forming grooves 'vor seams, the combination 1of :a iframe formed with an aperture, said lalverture being square at the front end, formed With a shoulder in the central yportion, :and lround at the rear end, a forming tool engaged in said aperture, having La Isquare portion engaging the square portion of said aperture, a central round portion', and a :roundshoulder at its rear Vend, and an expansion spring acting betwen 'said shoulders.

Q. In an apparatus ttor forming grooves yor seams, havin fa traine lor supporting a *forming ltool, t e combinationof :a front square portion, "a central shoulder, a

'rear -round' p'or`tion -in 'said iframe, AYa member depending from said :forming tool, said meniber being Iprovided witha Iiront square portion en'gageable with said square portion, a central portion, and .a zrear shoulder, and a -I`coil expansion 'spring naround said central portion, "sai-id spring abu'ttling against said shoulders. l' Y In testimony whereof I have 'aiiixed my signature.

ANGEL@ cononNA. 

